Usmani, A. ., . A. . Qamar, and S. . Sadiq. “Ageing Ovaries and Endometrium in PCOS”. Journal of Bahria University Medical and Dental College, vol. 3, no. 2, Dec. 2013, pp. 69-74, https://jbumdc.bahria.edu.pk/index.php/ojs/article/view/60.